This simply isn’t true. Your chances are bad but not because you are slightly older but rather because it is unlikely for any given person to get a research job. If you are passionate and do well in your studies, you’ll get into a great PhD program and then you’re odds are still against getting a research position.

What you can do is try to increase your odds as much as possible. What that means at this point for OP is trying to get into a good PhD program. This will be best accomplished through decent grades and some research experience. Keep going and you have as much a chance as anyone. But understand that these are competitive jobs that usually require 4 years of college+5 for PhD+a few postdoctoral positions+a bunch of good luck-all competing against people who are passionate about the topics and generally intelligent.